Question

solve 7x-4y=3 , x+2y=3 by cross multiplication​

Answer 1

Step-by-step explanation:

Hope it helps..............

Answer 2

Answer:

7x - 4y = 3 ______ (1)

x + 2y = 3_____(2)

in equ.. (2) multiply by 2

7x -4y = 3

2x + 4y =3

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9x = 6

x = 6/9

x=2/3 .

put the value of x in equation 1.

7x-4y=3

7. 2/3 -4y =3

14/3 -4y =3

-4y=3-14/3

-4y=-5/3

y= 5/12 (here -4 &-5/3 cancel out sine (-) .

so,

x=2/3 & y= 5/12 .